Batteries & Supercaps,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 9, 2024
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
have
attracted
significant
attention
from
researchers
in
recent
years
due
to
their
low
cost,
high
safety
and
theoretical
capacity.
Among
them,
δ‐MnO
2
is
considered
one
of
the
most
promising
cathode
materials
for
aqueous
zinc
ion
because
its
layered
structure,
which
facilitates
intercalation
deintercalation
ions.
However,
narrow
layer
spacing
poor
structural
stability
limit
future
practical
applications.
To
tackle
these
issues,
herein,
we
report
a
two‐step
strategy
introduce
anionic
fluoride
ions
into
nanoflowers.
The
flower‐like
spherical
composed
interspersed
nanosheets,
increases
active
sites
electrochemical
reactions.
Fluorine
doping
can
expand
interlayer
available
insertion/extraction,
formed
fluorine‐manganese
chemical
bonds
could
stabilize
manganese‐oxygen
octahedral
([MnO
6
])
structure.
F‐doped
nanoflowers
show
reversible
capacity
435.1
mAh
g
−1
at
current
density
0.1
A
,
obviously
higher
than
that
undoped
(212
).
These
results
indicate
potential
anion
introduction
enhancing
performance
batteries.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Фев. 21, 2024
Aqueous
sodium-ion
batteries
(ASIBs)
and
aqueous
potassium-ion
(APIBs)
present
significant
potential
for
large-scale
energy
storage
due
to
their
cost-effectiveness,
safety,
environmental
compatibility.
Nonetheless,
the
intricate
mechanisms
in
electrolytes
place
stringent
requirements
on
host
materials.
Prussian
blue
analogs
(PBAs),
with
open
three-dimensional
framework
facile
synthesis,
stand
out
as
leading
candidates
storage.
However,
PBAs
possess
a
swift
capacity
fade
limited
cycle
longevity,
structural
integrity
is
compromised
by
pronounced
dissolution
of
transition
metal
(TM)
ions
milieu.
This
manuscript
provides
an
exhaustive
review
recent
advancements
concerning
ASIBs
APIBs.
The
TM
PBAs,
informed
attributes
redox
processes,
are
thoroughly
examined.
Moreover,
this
study
delves
into
innovative
design
tactics
alleviate
issue
ions.
In
conclusion,
paper
consolidates
various
strategies
suppressing
posits
avenues
prospective
exploration
high-safety
sodium-/potassium-ion
batteries.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(10), С. 5291 - 5337
Опубликована: Янв. 1, 2024
Design
principles,
engineering
strategies,
challenges,
and
opportunities
of
gel
polymer
electrolytes
for
rechargeable
batteries
toward
wide-temperature
applications
are
thoroughly
reviewed.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 31, 2025
Abstract
Vanadium
oxides
are
attracted
cathodes
for
aqueous
zinc
batteries
owing
to
their
high
capacity.
However,
the
limited
cyclability
of
vanadium‐based
oxide
cathodes,
especially
at
low
current
densities,
impedes
practical
application.
Here,
it
is
revealed
that
proton
insertion
responsible
lifetime
vanadium
oxides.
Proton
promotes
dissolution
oxides,
deteriorating
electrochemical
performance.
Propylene
carbonate
(PC)
introduced
into
Zn(CF
3
SO
)
2
electrolyte
regulate
coordination
environment
water,
forming
PC‐coordinated
Zn
2+
solvation
structure
and
[H
O‐CF
−
‐PC]
complex.
The
optimized
water
weakens
adsorption
energy
between
molecules
inhibiting
insertion.
As
a
result,
cathode
without
can
maintain
stability
crystal
avoid
V.
Taking
CaV
8
O
20
·nH
as
cathode,
Zn||CaV
battery
performs
enhanced
cycling
This
work
not
only
reveals
negative
effect
on
but
also
provides
an
effective
strategy
modulate
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(13), С. 15162 - 15170
Опубликована: Июнь 27, 2024
Aqueous
zinc-ion
batteries
(AZIBs)
are
highly
competitive
in
the
realm
of
large-scale
energy
storage
applications
due
to
their
characteristics,
including
superior
power
density,
affordable
prices,
high
safety,
and
sustainability.
Nevertheless,
exploring
appropriate
cathode
materials
is
restricted
by
low
electronic
conductivity,
sluggish
Zn2+
ion
diffusion
kinetics,
structural
degradation
during
cycling.
Herein,
we
propose
a
three-birds-with-one-stone
strategy
incorporating
hydrated
manganese
ions
into
layered
vanadium
oxide
develop
an
advanced
material
for
storage.
Experimental
studies
theoretical
calculations
demonstrate
that
incorporated
Mn2+
not
only
play
vital
role
improving
stability
but
also
regulating
structure
facilitating
transportation
electrons.
Notably,
induces
controllable
morphology
regulation
fabricated
nanoscale
three-dimensional
flower-like
with
self-assembled
nanosheets
well-designed
nanomicrohierarchical
structure,
thus
providing
sufficient
active
sites
accommodate
more
ions.
Benefiting
from
above-mentioned
ternary
merits,
Mn0.5V2O5·2.4H2O
achieves
excellent
capacity
422
mA
h
g–1
at
0.1
A
retention
89%
over
1000
cycles
5
g–1,
much
higher
than
pristine
V2O5·2H2O
without
(14%
g–1).
The
modification
offers
perspective
on
effective
methodology
cathodes
electrochemical
properties
aqueous
rechargeable
batteries.
